What is the best compression ratio for MPEG ?
The MPEG sweet spot is about 1.2 bits/pel Intra and 0.35 bits/pixel inter. Experimentation has shown that intra frame coding with the familiar DCT-Quantization-Huffman hybrid algorithm achieves optimal performance at about an average of 1.2 bits/sample or about 6:1 compression ratio. Below this point, artifacts become non-transparent. Is there an MPEG file format? The traditional descriptors that file formats provide in headers, such image height, width, color space, etc., are already embedded within the MPEG bitstream in the sequence header. Directory file formats are described in the White Book and DVD specifications. What is the Digital Video Disc (DVD) ? In 1994, Toshiba united with Thomson Consumer Electronics, Pioneer, and a handful of Hollywood studios to define a new 12 cm diameter compact disc format for broadcast rate digital video. The new format basically increases the effective areal storage density over the 1982 Red Book format by some 6:1 (800 Mbytes vs 5 GBytes). This i
A. The MPEG sweet spot is about 1.2 bits/pel Intra and .35 bits/pel inter. Experimentation has shown that intra frame coding with the familiar DCT-Quantization-Entropy hybrid algorithm achieves optimal performance at about an average of 1.2 bits/sample or about 6:1 compression ratio. Below this point, artifacts become noticeable.
